Benito Fernández J, Sánchez Echániz J, Mintegui Raso S, Montejo Fernández M
Departamento de Pediatría, Hospital de Cruces, Barakaldo, Vizcaya.
An Esp Pediatr. 1996 Aug;45(2):149-52.
To determine if culture specimens of urine collected in perineal bags is reliable in detecting urinary tract infections in infants.
A prospective study was carried out in a pediatric emergency room of an urban teaching hospital. Forty-eight infants, 12 months old or less, requiring an uncontaminated urine specimen due to the evaluation of febrile illness, suspected urinary tract infection or to a previously contaminated urine culture specimen. Two consecutive urine specimens were collected for culture. A urine specimen was collected in a perineal bag and afterwards all patients underwent suprapubic bladder aspiration. Cultures were considered positive if pure growth of more than 1.000 colonies/ml developed in the suprapubic aspiration urine specimen.
Thirty-two infants had coincident cultures in both urine specimens. A positive culture specimen of urine collected in a perineal bag (pure growth of more than 100,000 colonies/ml) had high sensitivity (100%) and high specificity 88.6% in predicting positive cultures from urine obtained by suprapubic aspiration.
A urine culture specimen meticulously collected with a perineal bag is a good screening method for detecting urinary tract infection in low risk infants.
确定收集于会阴袋中的尿液培养标本在检测婴儿尿路感染方面是否可靠。
在一家城市教学医院的儿科急诊室进行了一项前瞻性研究。48名12个月及以下的婴儿，因发热性疾病评估、疑似尿路感染或先前尿液培养标本污染而需要无污染的尿液标本。连续收集两份尿液标本进行培养。一份尿液标本收集于会阴袋中，之后所有患者均接受耻骨上膀胱穿刺抽吸。如果耻骨上穿刺抽吸尿液标本中出现超过1000菌落/毫升的纯培养生长，则培养结果被视为阳性。
32名婴儿的两份尿液标本培养结果一致。收集于会阴袋中的尿液培养标本阳性（纯培养生长超过100000菌落/毫升）在预测耻骨上穿刺抽吸尿液培养阳性方面具有高敏感性（100%）和高特异性（88.6%）。
用会阴袋精心收集的尿液培养标本是检测低风险婴儿尿路感染的一种良好筛查方法。
